diff options
Diffstat (limited to 'vnfs/VES/code/evel_library/evel_internal_event.c')
| -rw-r--r-- | vnfs/VES/code/evel_library/evel_internal_event.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/vnfs/VES/code/evel_library/evel_internal_event.c b/vnfs/VES/code/evel_library/evel_internal_event.c new file mode 100644 index 00000000..03a3d14d --- /dev/null +++ b/vnfs/VES/code/evel_library/evel_internal_event.c @@ -0,0 +1,124 @@ +/**************************************************************************//** + * @file + * Implementation of EVEL functions relating to the internal events. + * + * Internal events are never expected to be sent to the JSON API but comply + * with interfaces for regular event types. The primary use-case is to enable + * the foreground processing to communicate with the background event handling + * processing in an orderly fashion. At present the only use is to initiate an + * orderly shutdown of the Event Handler thread. + * + * License + * ------- + * + * Copyright(c) <2016>, AT&T Intellectual Property. All other rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: This product includes + * software developed by the AT&T. + * 4. Neither the name of AT&T nor the names of its contributors may be used to + * endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY AT&T INTELLECTUAL PROPERTY ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL AT&T INTELLECTUAL PROPERTY BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + *****************************************************************************/ + +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#include "evel.h" +#include "evel_internal.h" + + +/**************************************************************************//** + * Create a new internal event. + * + * @note The mandatory fields on the Fault must be supplied to this factory + * function and are immutable once set. Optional fields have explicit + * setter functions, but again values may only be set once so that the + * Fault has immutable properties. + * @param command The condition indicated by the event. + * @returns pointer to the newly manufactured ::EVENT_INTERNAL. If the event + * is not used (i.e. posted) it must be released using + * ::evel_free_event. + * @retval NULL Failed to create the event. + *****************************************************************************/ +EVENT_INTERNAL * evel_new_internal_event(EVT_HANDLER_COMMAND command) +{ + EVENT_INTERNAL * event = NULL; + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(command < EVT_CMD_MAX_COMMANDS); + + /***************************************************************************/ + /* Allocate the fault. */ + /***************************************************************************/ + event = malloc(sizeof(EVENT_INTERNAL)); + if (event == NULL) + { + log_error_state("Out of memory"); + goto exit_label; + } + memset(event, 0, sizeof(EVENT_INTERNAL)); + EVEL_DEBUG("New internal event is at %lp", event); + + /***************************************************************************/ + /* Initialize the header & the event fields. */ + /***************************************************************************/ + evel_init_header(&event->header); + event->header.event_domain = EVEL_DOMAIN_INTERNAL; + event->command = command; + +exit_label: + EVEL_EXIT(); + return event; +} + +/**************************************************************************//** + * Free an internal event. + * + * Free off the event supplied. Will free all the contained allocated memory. + * + * @note It does not free the internal event itself, since that may be part of + * a larger structure. + *****************************************************************************/ +void evel_free_internal_event(EVENT_INTERNAL * event) +{ + + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. As an internal API we don't allow freeing NULL */ + /* events as we do on the public API. */ + /***************************************************************************/ + assert(event != NULL); + assert(event->header.event_domain == EVEL_DOMAIN_INTERNAL); + + /***************************************************************************/ + /* Free the header itself. */ + /***************************************************************************/ + evel_free_header(&event->header); + + EVEL_EXIT(); +}
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